Research Peptides Supplier
A research peptides supplier earns trust through documentation. Ours covers four measurements for every released lot, from an independent accredited laboratory.
Every NeoPep lot ships with a batch-specific Certificate of Analysis you can verify before you order.
VIEW LAB DOCUMENTATIONFour measurements behind every COA
Identity (LC-MS)
Mass spectrometry confirms the molecular sequence of every lot matches the published compound.
Purity (HPLC)
Chromatographic analysis verifies ≥99% purity, with impurities quantified per batch.
Potency
Quantitative assays confirm the vial contains the stated amount of lyophilized compound.
Endotoxins
Every lot is screened for bacterial endotoxins before it is cleared for research dispatch.
Browse research peptides by category or see our peptide suppliers sourcing guide.
Frequently asked questions
What should a research peptides supplier provide?
A batch-specific COA covering identity, purity, potency, and endotoxins, produced by an independent accredited laboratory.
Why does independent verification matter?
In-house testing creates a conflict of interest. Independent labs have no incentive to pass a failing lot.
Can I download COAs before ordering?
Yes. COAs for current lots are posted on each product page and on our quality page.
FOR RESEARCH USE ONLY
All products are supplied strictly for in-vitro laboratory research by qualified professionals. Not for human or veterinary use. These products have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease.